Hi,
Could you please help me knowing the Neve 1073 pinout?
Many thanks!

you could contact Geoff Tanner ... FAQ | Aurora Audio

Hi

From memory....

A = Mic +
B = Mic -
E = 0v
F = Line +
H= Line -
K= Fader send
L = Fader return (use E for Fader ground)
P = Unbalanced O/P
R = O/P +
T = O/P -
U = +24v
V = GROUND

Don't forget to connect a proper ground to pin V... I have seen so many crappy wired 1073's where they link E and V and float the whole thing from ground.

Connect the PSU 0v to ground and make sure the module and power supply are well grounded.

Then you won't have instability and RF pick up at 80dB gain.

Leaving off grounds does not prevent ground loops... having everything at the same ground potential sorts out that. If a problem persists lift a ground on a cable but not the ground to the module.